如何在Ubuntu上安装和使用命令行备忘单

2024-04-24 20:48:03 117

Cheat是主要基于Python软件的命令行，可让系统管理员查看和保存有用的备忘单。它检索委托命令的简单文本示例，该示例将提醒用户其他选择，参数或常用的用法。作弊用于“您经常使用的命令，但是现在不足以考虑”

安装作弊

在安装Cheat之前，我们需要确保系统上的所有内容都是最新的，如以下命令所示–

$ sudo apt-get update && sudo apt-get upgrade

最好使用Python软件包管理器Pip安装Cheat。要安装pip，请使用以下命令-

$ sudo apt-get install python-pip

要安装作弊功能，请使用以下命令-

$ sudo pip install cheat

样本输出应如下所示–

Collecting cheat
   Downloading cheat-2.1.24.tar.gz (42kB)
      100% |████████████████████████████████| 51kB 89kB/s
Collecting docopt>=0.6.1 (from cheat)
   Downloading docopt-0.6.2.tar.gz
Collecting pygments>=1.6.0 (from cheat)
   Downloading Pygments-2.1.3-py2.py3-none-any.whl (755kB)
      100% |████████████████████████████████| 757kB 892kB/s
Installing collected packages: docopt, pygments, cheat
   Running setup.py install for docopt ... done
   Running setup.py install for cheat ... done
Successfully installed cheat-2.1.24 docopt-0.6.2 pygments-2.1.3

要验证是否安装了作弊软件，请使用以下命令–

$ cheat -v

样本输出应如下所示–

cheat 2.1.24

设定文字编辑器

我们能够继续创建我们的个人备忘单，Cheat希望知道我们希望默认使用哪种文本内容编辑器来编辑表单。要设置nano文本编辑器，请使用以下命令–

$ export EDITOR=/usr/bin/vim

我们可以使用以下命令确认以上命令是否成功–

$ printenv EDITOR

输出应该是这样的–

/usr/bin/vim

要使此更改在以后的所有Shell会话中永久保留，必须将环境变量声明添加到.bashrc文件中。这是在bashshell会话开始时运行的几个文件之一。要打开bashrc文件，请使用以下命令-

$ nano ~/.bashrc

样本输出应如下所示–

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
   *i*) ;;
     *) return;;
esac
export EDITOR=/usr/bin/vim

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000

然后添加相同的导出命令，如下所示

.....................................................
# If not running interactively, don't do anything
case $- in
*i*) ;;
*) return;;
esac

export EDITOR=/usr/bin/vim

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth
...........................................

保存并退出文件。

运行作弊

要以最基本的形式运行Cheat的tail命令，请使用以下命令-

$ cheat tail

样本输出应如下所示–

# To show the last 10 lines of file
tail file

# To show the last N lines of file
tail -n N file

# To show the last lines of file starting with the Nth
tail -n +N file

# To show the last N bytes of file
tail -c N file

# To show the last 10 lines of file and to wait for file to grow
tail -f file

要查看所有现有作弊项的列表，请使用以下命令–

$ cheat -l

输出应该是这样的–

7z /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/7z
ab                     /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/ab
apk                    /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/apk
apparmor               /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/apparmor
apt                    /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/apt
apt-cache              /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/apt-cache
apt-get                /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/apt-get
aptitude               /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/aptitude
asciiart               /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/asciiart
asterisk               /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/asterisk
at                     /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/at
awk                    /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/awk
bash                   /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/bash
bower                  /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/bower
chmod                  /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/chmod
chown                  /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/chown
convert                /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/convert
crontab                /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/crontab
csplit                 /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/csplit
cups                   /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/cups
curl                   /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/curl
cut                    /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/cut
date                   /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/date
dd                     /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/dd
df                     /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/df
dhclient               /usr/local/lib/python2.7/dist-packages/cheat/cheatsheets/dhclient
..............................................................................................

创建和编辑备忘单

要创建备忘单，请使用以下命令–

$ cheat -e nhooo

上面的命令nhooo是备忘单名称。它将打开一个空白备忘单。现在添加您的秘籍并保存。

搜索备忘单

要搜索备忘单，请使用以下命令–

$ cheat -s tail

上面的命令正在搜索tail命令。样本输出应如下所示–

asterisk:
   # To print out the details of SIP accounts:
dnf:
   # To search package details for the given string
dpkg:
   # List all installed packages with versions and details
hardware-info:
   # Display all hardware details
journalctl:
   # Actively follow log (like tail -f)
mdadm:
   # See detailed array confiration/status
   mdadm --detail /dev/md${M}
   mdadm --detail --scan > /etc/mdadm/mdadm.conf
p4:
   # Print details related to Client and server configuration
pacman:
   pacman -Ql | sed -n -e 's/.*\/bin\///p' | tail -n +2
pip:
   # Show details of a package
tail:
   tail file
   tail -n N file
   tail -n +N file
   tail -c N file
   tail -f file

而已。在阅读完本文之后，您将能够了解–如何在Ubuntu上安装和使用命令行备忘单，我们将提供更多基于Linux的技巧和窍门。继续阅读！

如何在Ubuntu上安装和使用命令行备忘单

安装作弊

设定文字编辑器

运行作弊

创建和编辑备忘单

搜索备忘单

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